87313471 has 8 divisors (see below), whose sum is σ = 99865760. Its totient is φ = 74780928.

The previous prime is 87313441. The next prime is 87313481. The reversal of 87313471 is 17431378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87313471 - 2¹¹ = 87311423 is a prime.

It is a super-3 number, since 3×87313471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87313441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6235 + ... + 14611.

It is an arithmetic number, because the mean of its divisors is an integer number (12483220).

Almost surely, 2^87313471 is an apocalyptic number.

87313471 is a deficient number, since it is larger than the sum of its proper divisors (12552289).

87313471 is a wasteful number, since it uses less digits than its factorization.

87313471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its digits is 14112, while the sum is 34.

The square root of 87313471 is about 9344.1677532031. The cubic root of 87313471 is about 443.6363100668.

The spelling of 87313471 in words is "eighty-seven million, three hundred thirteen thousand, four hundred seventy-one".